Pith Number

pith:OHKCY23J

pith:2014:OHKCY23JGT2WVPJZ6TC24YH3CV

not attested not anchored not stored refs pending

The extent of the MgII absorbing circum-galactic medium of quasars

A. Treves, E. P. Farina, J. K. Kotilainen, R. Decarli, R. Falomo, R. Scarpa

arxiv:1403.5559 v1 · 2014-03-21 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHKCY23JGT2WVPJZ6TC24YH3CV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:43:52.437579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71d42c6b6934f56abd39f4c5ae60fb155d39d58e31ca6b7552afd67328f77b5a

Aliases

arxiv: 1403.5559 · arxiv_version: 1403.5559v1 · doi: 10.48550/arxiv.1403.5559 · pith_short_12: OHKCY23JGT2W · pith_short_16: OHKCY23JGT2WVPJZ · pith_short_8: OHKCY23J

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OHKCY23JGT2WVPJZ6TC24YH3CV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 71d42c6b6934f56abd39f4c5ae60fb155d39d58e31ca6b7552afd67328f77b5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81eefeb97e7eac44b13267020dc787dcc19befa61d860c79f57b825b5f14caf3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-03-21T20:00:06Z",
    "title_canon_sha256": "c164ec19ffc8a24f99ebff4701902d082f477cc40d2fec71240c35c3fba51b76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5559",
    "kind": "arxiv",
    "version": 1
  }
}